Submission #1272753

#	Time	Username	Problem	Language	Result	Execution time	Memory
1272753		ghammazhassan	Fish 3 (JOI24_fish3)	C++20	7 / 100	88 ms	11620 KiB

Main

// #include <bits/stdc++.h>
#include <iostream>
#include <cmath>
#include <algorithm>
#include <map>
#include <unordered_map>
#include <vector>
#include <iomanip>
#include <string>
#include <queue>
#include <set>
#include <deque>
using namespace std;
#define int long long
#define endl "\n"
#define fi first
#define se second
const int M=998244353;
const int inf = 1e14;
const int LOG=20;
const int N=3e5+5;
int n , m , c , w , k , t=1 , q=1 , x , y , z , l , r;
void solve()
{   
    cin >> n >> x;
    vector<int>a(n+1);
    vector<int>pr0(n+1);
    vector<int>pr1(n+1);
    vector<int>cn(n+1);
    for (int i=1;i<=n;i++){
        cin >> a[i];
        pr0[i]=pr0[i-1];
        if (a[i]==0){
            pr0[i]=i;
        }
        pr1[i]=pr1[i-1];
        if (a[i]==1){
            pr1[i]=i;
        }
        cn[i]=cn[i-1]+(a[i]==1);
    }
    cin >> q;
    for (int o=0;o<q;o++){
        cin >> l >> r;
        if (pr1[pr0[r]]<l){
            cout << 0 << endl;
        }
        else if(x==1){
            cout << cn[pr1[pr0[r]]]-cn[l-1] << endl;
        }
        else{
            cout << -1 << endl;
        }

        
    }


    
}
signed main()    
{

    ios::sync_with_stdio(0);//DO NOT USE IN INTERACTIVE
    cin.tie(0), cout.tie(0);//DO NOT USE IN INTERACTIVE
    cout << fixed << setprecision(9);
    // int t=1;
    // cin >> t;
    for (int _=1;_<=t;_++){
        solve();
        q++;
    }
} 

• Subtask 1: 0 / 9
• Subtask 2: 7 / 7
• Subtask 3: 0 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36